Answer:
B. climate change
Explanation:
asteroids are too big and volaconos are probably gonna create a lot of smoke that can kill ya in seconds so I guess climate change
The force of the pulley is 652 newtons. It accelerates at 53 m/s. How much does the object weigh. a 1230 grams b 1.230 gram c 123.0 grams d 12.30 Grams
Answer:
d. 12.30 grams
Explanation:
Given the following data;
Force = 652 N
Acceleration = 53 m/s²
To find how much the object weigh, we would need to determine its mass;
Force = mass * acceleration
652 = mass * 53
Mass = 652/53
Mass = 12.30 grams.
Therefore, the object weighs 12.30 grams.
You skip north for 12 minutes to your best friend's house that is 1.5 kilometers away. What is your average velocity?
Answer:
The average velocity is 7.5 km/h
Explanation:
Were Gonna convert minutes to hours
12 minutes = 12/60 hours = 0.2 hours
Now we estimate the average velocity of the distance traveled over this time
1.5 / 0.2 km/h = 7.5 km/h
8. What is the length of the diagonal of a 10 cm by 15 cm rectangle?
Answer:
18.03
Explanation:
You use Pythagoras theorem to work out the diagonal
Hope this helps :)
ii) One of the containers is wide and shallow. The other container is narrow and deep
Predict which container has the greater rate of cooling. Explain your answer.
Increasing an object's height also results in an increase of the object's
What is the number used as the Gravitational Constant?
Answer:
G is called the constant of gravitation and is equal to 6.67 × 10−11 newton-metre2-kilogram−2.
Explanation:
list sources of noise pollution in your surroundings
-Sounds of Vehicles
-Speakers or TV's at High Volume
-Kitchen Appliances
-Electronic Appliances
-Barking of dogs
Answer:
there are many
Explanation:
includeing planes
loud music
cars
traffic noise
what is the mass of an object if a 30 N force makes it accelerate at 6 m/s2
Answer:
5 kg
Explanation:
Acceleration = 6 m/s^2
Force = 30 N
Force = mass * acceleration
mass = force / acceleration
mass = 30 / 6
mass = 5 kg
you push a freezer with a force of 250 N. if you move it a distance of 15 m, how much work was done?
Answer:
375J
Explanation:
W=F x d
=250 x 15
=375J
The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea. If the force is applied at an angle to the displacement, the work is W = fd cos.
What force is related to work done?Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. In its simplest form, For a constant force that is oriented in the same direction as the motion, it is easiest expressed as the product of the force's magnitude and the distance travelled.
A desk is being subjected to applied force if someone is pushing it across the room. The person's force applied to the desk is known as the applied force.
Mass and weight are not the same.The normal force is the supporting force exerted on an object when it collides with another stable object.
Therefore, W=F × d =250 × 15 =375J
Learn more about work done here:
https://brainly.com/question/13662169
#SPJ2
How does Earth's movement affect how the Sun is seen? The Sun is stationary, but Earth's rotation makes it appear to move east to west across the sky. Earth's rotation around the Sun makes the Sun appear to move across the sky every 365 days. The Sun and Earth move around each other, so the Sun moves east to west across the sky. The Sun is stationary, but Earth's clockwise rotation makes it appear to move west to east across the sky.
Answer:
The manner in which the Earth's movement affect how the Sun is seen is;
The Sun is stationary, but Earth's rotation makes it appear to move East to West across the sky
Explanation:
The Earth's movement affect the way the Sun is seen
The Sun appears to rise in the Eastern part of the sky and continues in motion till the it sets at the Western part of the sky
However, the Sun does not actually move relative to the Earth as seen in the sky. The observed motion of the Sun is due to the counterclockwise rotation of the Earth about its axis
Therefore, the Earth's movement affect the way the Sun is seen by making the Sun appear to move across the sky from East to West
Answer:
The sun stays still but the rotation of the earth makes it look like it goes east to west.
Explanation:
A coil of wire can become a temporary magnet if connected to a battery
O True
O False
Answer:
true
Explanation:
An Electromagnet is called as a temporary magnet, because electromagnet is made up of insulated copper wire wrapped around soft iron, which allows current to flow in it and at that moment iron gains it magnetic properties and when the current is switched off, then there will be no flow of current and hence iron loses its magnetic properties.
Hence it works temporarily as long as electric current flows in a conductor and hence known as temporary magnet. .
Urgent!
What is the mass of a baseball that has a kinetic energy of 4.8 J and is traveling at 8 m/s?
I think it's 0.6. ∞
Hopefully, it's correct... ∵-∵
Calculate the kinetic energy of a 2kg ball moving at 5m/s
Answer:
25
Explanation:
The kinetic energy is 25
Balanced equations account for the conservation of mass.
Please select the best answer from the choices provided
T
F
Answer:
fff
Explanation:
f
Answer:
True
Explanation:
A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow
What is the atomic mass of fluorine rounded to the nearest whole number?
Answer:
195
Explanation:
Para el siguiente conjunto de medidas, calcule EL ERROR RELATIVO PORCENTUAL: 1.34 m, 1.35 m, 1.37 m y 1.36 m
Answer:
Ver explicacion abajo
Explanation:
En este caso para poder calcular el error relativo porcentual, es necesario calcular primero el error absoluto, que se calcula de la siguiente forma:
Error absoluto = Resultado exacto - aproximación
Sin embargo, no tenemos el resultado exacto de las medidas, pero podriamos conocerlo tomando el promedio de estas medidas y este es el que tomaremos como el verdadero resultado de las medidas:
Promedio de medidas = 1.34 + 1.35 + 1.37 + 1.36 / 4
Promedio de medidas = 1.355 m
Ya que tenemos el promedio, podemos calcular el error absoluto de cada medida y luego el error relativo porcentual:
Ea1 = 1.355 - 1.34 = 0.015
Ea2 = 1.355 - 1.35 = 0.005
Ea3 = 1.37 - 1.355 = 0.015
Ea4 = 1.36 - 1.355 = 0.005
Ya que tenemos los 4 errores absolutos, es posible calcular el porcentual:
%error relativo = (Error absoluto / resultado exacto) * 100
Aplicando la expresión con cada uno de los valores tenemos:
%Er1 = (0.015/1.34) * 100 = 1.12%
%Er2 = (0.005/1.35) * 100 = 0.37%
%Er3 = (0.015/1.37) * 100 = 1.09%
%Er4 = (0.005/1.36) * 100 = 0.37%
Espero que te sirva.
Does an explicit formula for a sequence make sense assuming n = 2.5? Explain
Choose the correct answer below
O A. It makes sense, but only if the term for n = 2.5 is an integer
OB. It does not make sense since n is the term number. It is not possible to have a term between the second and third terms.
OC. It makes sense since n is a variable, and variables can be any real number
OD. It does not make sense since n can be negative or positive but must be an integer.
Answer:
c
Explanation:
tbh I think it is c because of what the explanation says so
Answer:
D
Explanation:
because i got it right when guessing its d
The mass of the motorbike and rider is 286 kg. Calculate the acceleration of the motorbike at this moment in time.
Answer:
[tex]a=4.03\ m/s^2[/tex]
Explanation:
Given that,
The mass of the motorbike and rider is 286 kg.
We need to find the acceleration of the motorbike at this moment in time.
Net force acting on the bike is given by :
F = 2000 N - 845 N = 1155 N
Let a be the acceleration of the motorbike. So,
[tex]a=\dfrac{F}{m}\\\\a=\dfrac{1155}{286}\\\\a=4.03\ m/s^2[/tex]
So, the acceleration of the motorbike is [tex]4.03\ m/s^2[/tex].
find the area of the following shape:
Answer:54cm²
Explanation:Area of first rectangle=L×B=6×5=30cm²
Area of second rectangle=L×B=8×3=24cm²
Areas are added to 54cm²
How is sleet different from hail?
Answer:
Hail occurs in warm weather, while sleet occurs during cold weather. When the temperature falls below 32 degrees, precipitation falls out of a cloud as snow. ... Unlike hail, sleet is tiny in size and falls only once from the sky.
Explanation:
Hopefully its right :)
I need help with thissss
Explanation:
back ground radiation is a natural radiation so basically everything emits background radiation. so if it were harmful, the world wouldn't be here,
so it is false
it knocks electrons out of atoms, this is because ionising radiation is a radiation that had enough energy to remove electrons form the atoms and molecules.
true because exposure to radon can damage biological molecules such as proteins, which leads to abnormal patterns of cell division, which leads to cancer.
hope it is helpful, if not , you can report and let someone else try it out.
do vote, thank you
A car is traveling in a race.The car went from the initial velocity of 35 to the final velocity of 65 in 5 seconds what is the acceleration
Answer:
Acceleration = 6m/s²
Explanation:
Given the following data;
Initial velocity = 35m/s
Final velocity = 65m/s
Time = 5 seconds
To find the acceleration;
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Mathematically, acceleration is given by the equation;
[tex]Acceleration (a) = \frac{final \; velocity - initial \; velocity}{time}[/tex]
Where,
a is acceleration measured in [tex]ms^{-2}[/tex]v and u is final and initial velocity respectively, measured in [tex]ms^{-1}[/tex]t is time measured in seconds.Substituting into the equation, we have
[tex]a = \frac{65 - 35}{5}[/tex]
[tex]a = \frac{30}{5}[/tex]
Acceleration = 6m/s²
A ball rolls 14.4 m in 12 12 sec. what is the speed
Answer:
1.2 mph
Explanation:
14.4 ÷ 12 = 1.2
If you took the same amount (the exact same volume), of a piece of crust and compared it to a piece of the core, which one would be heavier for its size? Why?
Answer:
The answer is below
Explanation:
Density is the amount of matter contained in a certain space. Objects that are dense are very heavy compared to their size while objects that are not dense are very light compared their size. Therefore most dense objects sink when placed in water while less dense objects floats in water.
Density is the ratio of mass to volume. It is given by:
Density = mass / volume
Crust has a density of 2.2 - 2.9 g/cm³ while core has a density of 9.9 - 12.2 g/cm³ for its outer and 12.8 - 13.1 g/cm³ for its inner.
Therefore if the same amount of a piece of crust is compared to a piece of core, the core would be more heavier since it has more density than the crust.
Many people love roller coasters. Some people call them scream machines. They agree that
riding a roller coaster is a thrilling experience. What you may not realize while you are going 60 miles an hour is that a roller coaster has no
engine. You are not being propelled around the track by a motor or pulled by anything. A roller coaster moves on its own. How do you think that
can happen?
Answer:
There is some sort of "rollers" on the trail part that is used to make the roller coaster move when it is going up. Then because of that, the speed gets quicker when it drops down, so then it could move for a longer time until it reaches the next arch.
Explanation:
hope this helps :)
I don't know what kind of wave this is.... My bad
Answer:
Compresion wave
Explanation:
Why does the Ring of Fire have SO MUCH earthquake/volcanic activity?
It is closer to the center of the Earth.
More people live here.
There is a lot of plate movement)
HELP ME PLS AM IN A TEST I BEG YOU PLS
Answer:
Many volcanoes in the Ring of Fire were created through a process of subduction. And most of the planet's subduction zones happen to be located in the Ring of Fire. Subduction happens when tectonic plates shift, and one plate is shoved under another.
Explanation:
Jenny loves puffed rice cereal. As she is pouring the cereal, two little
pieces of cereal each with equal charges of 1.85 x10-18 coulombs
fall into the bowl 0.025 meters apart. Use Coulomb's Law to find the
electrostatic force between them. (Remember, Coulomb's constant
is 8.99 x10° N*m2/C2)
A-4.9 x 1023 N
B-6.2x 10-15 N
C-9.0 x 10-3 N
D-2.5 x 10-23 N
Answer:
4.9 x 10-23 N
Explanation:
I took the test
Answer:
4.9 x 10-23
Explanation:
I just took the test too its
A collector of rare items is negotiating with a museum. He wants to sell a spear he claims to have been
used to kill a mammoth over 11,000 years ago. A spear that size would have started with around 4g of
Carbon-14, and the museum tests show it now contains around 2g. How many half-lives have passed since the spear was carved?
Answer:
I'm not sure if you maybe forgot to add in some information but I can give you the equation you will need to solve this..! (just without the bit of infomration you might need)
[tex]2=4(\frac{1}{2})^{\frac{1100}{t}}[/tex]
In this case you'll be solving for t and I can help you with your first step, you'll divide 2 by 4, getting you to:
[tex]\frac{1}{2} =\frac{1}{2}^{\frac{1100}{t}[/tex]
Answer:
1 as 2g is half of 4g
Explanation: that means that the spear is closer to 6k years old
Imagine you live next-door to your best friend. Your bedroom windows face each other, and you want to set up a way to communicate privately using waves. You have these supplies:
a long string
a spring toy long enough to stretch between your windows
metal cans
a Morse code alphabet decoder (Morse code is a system that represents letters of the alphabet with dots and dashes) imagine you live next-door to your best friend
Answer:
A morse code alphabet decoder maybe?? I am confused
Explanation:
Answer:
J3rk it in the window ;-)
Explanation: